Sunny Hill has uploaded a number of photo teasers to the group’s official Facebook page ahead of the forthcoming release of the group’s first ever full-length studio album, “Part A.” The album’s lead single will be “Once in Summer,” and is slated for release on August 1.

The new material comes just over a year since Sunny Hill’s last release, the “Young Folk” mini album, which contained the track, “Darling of All Hearts.”

The group had already uploaded a group photo teaser on July 29, but has now added four individual teaser images, featuring the girls in domestic settings.

The new material will be the group’s first since officially becoming a girl group. Although much of their most recent success was also enjoyed as a girl group, Sunny Hill began life as a co-ed act, and the female members continued to record and perform while their lone male member, Janghyun, performed his military service. Janghyun did rejoin the group for the “Young Folks” release, but has since left the act.